Toy4x4 Digest Wed, 26 Mar 97 00:30:03 (HST) Volume 1 : Issue 110
Today's Topics:
32" tires
anone have a red truck?
correction: crawl ratio with 4.10 gears and 31" tires
crawl ratio with 4.10 gears and 31" tires (5 msgs)
Detroit Locker (3 msgs)
Differential Slop (2 msgs)
Electrical Help (5 msgs)
Front torque rod
Head gasket... (4 msgs)
How low do you go? (3 msgs)
lateral traction bars..ladder bars.
More Muffler Sounds (2 msgs)
non-stock exhaust
on-board air 82 toy 4x4 parts PLEASE HELP
on board air/blue book prices
Rough Idle.... (2 msgs)
special order Taco; tire question
Test of realtime mode
Timing chain (2 msgs)
Tow Strap Usage
Used p/u need some advice (2 msgs)
wood is good! (11 msgs)
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Date: Tue, 25 Mar 1997 07:44:07 -0500
From: "R. W. 'Butch' Stiles" Subject: 32" tires
To: Toy4x4@tlca.org
Greg S. Francis wrote:>>>> And I'd like to repost the question about 32's on stock alloy rims,>>> and whether they will rub, and if so where and how bad. This would be on a>>> 4Runner.>>>>What I hear is that you can fit a 32" fine. I plan to get some 32">>mud-terrains for my 88 'Runner as soon as I can afford them, and they'll>>have to go on my stock SR5 rims, as least for now. I have a 2" lift,>>and after talking with people, I expect no rubbing, even when they're>>crammed up in the wheel well. With no lift you might get minimal>>rubbing, but we're talking extreme articulation. With 33" no questions,>>they will rub.>>>>Obviously I'm not talking from experience here. This is just what I've>>heard from the experienced people.>>>>Scott>>--> I believe that the SR5 rims are 7"? I have aftermarket 15x7s and the> people who sold me my tires *strongly* advised agianst 32x11.5s claiming> that the sidewall would roll and weaken and that the tread would wear> prematurely. They even said something about voiding the tire warrenty, but> that may have been hot air. Was I lied to?> -Greg>> Greg S. Francis> University of Texas @ Austin> School of Architecture> gfrancis@ccwf.cc.utexas.edu
Greg,
When I bought my truck, the previous owner had crammed 31" tires
on the factory 6" rims. The sidewall roll was very bad, downright
dangerous, in fact. Check the manufacturer's spec's on the tires you
intend to buy, they will tell you what rim sizes they can be put on.
And yes, if you ignore their "recommendations", they will void the
warranty.
Butch Stiles
rokitman@erols.com
Just as it says "Rocket Man"
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Date: Wed, 26 Mar 1997 01:15:55 -0600
From: Rob Guy Subject: anone have a red truck?
To: toy4x4 I've got a red 93 4Runner and the paint has faded on the top surfaces
(hood and roof), not the sides. Does anyone else with a red truck have
this prob? I spoke to Toyota about this and, of course, they said it
was because i didn't polish the truck regularly. WRONG, I take better
care of my truck than the average person and I'm sure this is prolly a
factory problem. The warranty has run out by about 6 months, but is
there anyway I can have Toyota fix this. BTW, road salt is not a
problem around here.
Thanks,
http://www.tecinfo.com/~luv2drag/
Rob Guy
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Date: Tue, 25 Mar 1997 12:00:04 -0800
From: Eric Johnson Subject: correction: crawl ratio with 4.10 gears and 31" tires
To: "'Toy4x4@tlca.org'" In a fit of stupidity, I wrote:> 89's usually came with a 2.28:1 t-case if they had a manual tranny.> The 2.57 T-case is only on automatics, AFAIK.> I assume you have the R150F tranny?
I was wrong. a 2.556 transfer case was indeed available with the R150F. The
W56 usually had a 2.28 transfer case, though some 4runners had a R150F with
a 2.28 low... The A340H T-case has the 2.659:1 low range.
- --
- -- ej@blarg.net
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Date: Tue, 25 Mar 1997 08:43:47 -0800
From: Eric Johnson Subject: crawl ratio with 4.10 gears and 31" tires
To: "'Toy4x4@tlca.org'" Jonathan Albrecht wrote:>>> Here's another question for all the gear heads our there. It'll soon>>> be time to buy new tires. I want to put 31x10.50 BFG Mud Terrains on>>> my 89 V6. However, I can't afford to swap the 4.10 gears to 4.56 at>>> this time. I know that I'll lose power (about 8%), but I can live>>> with that. My first 4x4 was a Toyota 4 Cylinder and I didn't have a>>> big problem with the "lack" of power.>>>>> Are you sure you have 4.10's, my 4Runner came with 225 tires , v6 and>> 4.30's . I found the 31" tires to work OK with those gears but the 4.56>> would be better for those tires.>> Do you have an auto?>> As best I can remember, this is what the toyota brochure in '93 said:>> 4cyl manual: 4.10:1> 4cyl auto: ~4.3:1> v6 manual: 4.10:1> v6 manual 31" tires: 4.56:1> v6 auto p225 tires ~4.3:1 (I think)> v6 auto 31" tires: 4.88:1 (not compatible with aftermarket gear sets> btw)>> This applied for both 4Runners and p/u's.. Easiest way though (instead of> messing with id codes and stuff) is just to jack up the rear end,
[snip]
...but if you do want to mess with the codes (which IMHO is far easier
than jacking up the truck) a code list is at:
http://www.off-road.com/4x4web/toyota/4_axles.html
- --
- -- ej@blarg.net
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Date: Tue, 25 Mar 1997 08:59:09 -0800
From: Eric Johnson Subject: crawl ratio with 4.10 gears and 31" tires
To: "'Toy4x4@tlca.org'" David Booth wrote:
[snip]> My big concern is losing the ability to rock crawl. I've often heard> this ability measured as a "Crawl Ratio", which is the product of the> T-Case ratio (2.57),
89's usually came with a 2.28:1 t-case if they had a manual tranny.
The 2.57 T-case is only on automatics, AFAIK.
I assume you have the R150F tranny?>the Axle ratio (4.10), and first gear (3.83).> With the V6 gearing and the 4.10 axles, the crawl ratio is 40.4. With
If your t-case is 2.28, you're looking at 35.8.> 4.56s it is 44.9 and with 4.88 it is 48.0. Obviously 4.56 and 4.88> gears give a better crawl ratio.> Now, since the crawl ratio is unaffected by the tire size, I'm not> sure how the larger tires will affect my ability to crawl up and down> rocky terrain. Logic tells me that it will be an adverse effect.
You're right, as far as usable torque is concerned. What we're
really going after is high RPMs per inch, which DOES take into
account tire size. If it takes 35.8 revolutions of the motor to turn
the tires one turn, then each inch of ground speed requires
35.8/(28*pi) = .406 revs/inch, but with 30.5" tires, its
.373 revs per inch.
- --
- -- ej@blarg.net
------------------------------
Date: Tue, 25 Mar 1997 11:30:22 -8 GMT
From: "Leo G. Divinagracia III" Subject: crawl ratio with 4.10 gears and 31" tires
To: Toy4x4@tlca.org
From: Jonathan Albrecht
http://users.uniserve.com/~rcomber/scottw/scottw.htm Allright Scott, now when you want to try some nice big hill cimbs
you give me a call ok? :)
Paul
